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avatar+1679 

Solve each one: Roots

 Feb 28, 2019
 #1
avatar+67 
-3

all you have to do is put it in the calculator silly!!!
Look if you want a square root, type sqrt(Number)

If you want a cubed root, type sqrt3(Number)

I've done five for you:

A:15.8113883008418967

C:11.6189500386222507

E:4

G:6.3245553203367587

I:14.6969384566990686

Hope this helped

-DBZ

smiley

 Feb 28, 2019
 #2
avatar+98091 
+2

The key to these square roots is to factor the number with the largest square possible

 

For the cube roots...the largest cube possible

 

a  sqrt ( 250)  =  sqrt (25 * 10) =  sqrt (25)*sqrt(10) =  5 sqrt(10)

 

b   ∛(250)  = ∛ [ 125 *2 ] =  ∛125 * ∛2   =  5 ∛2

 

c  sqrt (135) =  sqrt (  9 * 15)  =  sqrt(9) * sqrt (15) = 3sqrt(15)

 

d  ∛135  = ∛ [ 27 * 5 ]  = ∛27 * ∛5  =   3 ∛5

 

e   sqrt (16) = 4 

 

f   ∛16  = ∛8 * ∛2   =  2∛2

 

g     sqrt (40) = sqrt(4) * sqrt (10)  = 2sqrt(10)

 

h   ∛40 = ∛8 * ∛5 =  2∛5

 

i   sqrt (216)   =   sqrt (36) * sqrt (6) =  6sqrt(6)

 

j   ∛216 =  6

 

k   sqrt (108) =  sqrt (36) * sqrt (3)  = 6 sqrt(3)

 

l    ∛108 = ∛27 * ∛4 =   3∛4

 

m      sqrt ( 56) =  sqrt (4 * 14)  =  sqrt (4) * sqrt (14)  = 2sqrt (14)

 

n       ∛56 = ∛8 *∛7 =   2∛7

 

o    sqrt (480 = sqrt 16 * sqrt 3 =   4 sqrt(3)

 

p   ∛48 = ∛8 * ∛6  =  2∛ 6

 

 

cool cool cool

 Feb 28, 2019

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